DR. GARY J THEISEN MD
NPI 1689649519
Anesthesiology in Kalamazoo, MI

Q: What is Gary Theisen's NPI number?

The NPI number for Gary Theisen is 1689649519. It was assigned to this individual provider in the NPPES registry on February 22, 2006.

Q: What is Gary Theisen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Gary Theisen was last updated on July 9, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 22, 2006PECOS Enrolled

900 PEELER ST, KALAMAZOO, MI 49008(269) 345-8618(269) 345-1508 Get Directions Write a Review

NPPES record last updated: July 9, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. Gary J Theisen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GARY J THEISEN MD (NPI 1689649519) is an individual anesthesiology provider in Kalamazoo, Michigan, licensed in Michigan (4301051063) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689649519

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. GARY J THEISENCredential: MD

Location Address900 PEELER STKalamazoo, MI 49008-2380

Mailing Address900 Peeler StKalamazoo, MI 49008-2380 · (269) 345-8618 · Fax (269) 345-1508

Phone(269) 345-8618

Fax(269) 345-1508

Sole ProprietorNo

Enumeration DateFebruary 22, 2006

Last NPPES UpdateJuly 9, 2010

✔ NPI 1689649519 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in MI · 4301051063

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

900 PEELER ST, Kalamazoo, MI 49008

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Other Identifiers 5

Medicaid4858129MI

Medicaid1813894MI

Medicare PINC97602007MI

Medicare UPINA75971MI

Medicare PINP31300035MI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gary J Theisen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANNE COLONIUS BSN, SRNA

Nurse Anesthetist, Certified Registered